Bad injectors???

[2001RED]

I notice that my Celica has been driving really sluggish lately. It's a 01 GT auto with 18k miles. When I gas it, it seems like the engine is working really hard and doesn't move. It's bone stock, never modified, never abused, and I have never pump anything below 89 octane on the car and non of that quickymart cheap brand gas for me.

This only happens when the car is warmed up. However, when the car is cold, the car drives fine, perfect.

Any suggestions?

[Vroom_Vroom]

hmmm try using 92 gas or higher itll probably help but not sure..my 88 celica had that same problem and it turned out to be a corroded spark plug wire...but then again my uncles Z3 was sluggish when it warmed up and he doesnt use anything below supreme and turns out he had dirty injectors..